• Chambers's Twentieth Century Dictionary
    • Anhydrides a term now commonly given to the compounds formerly known as anhydrous acids—in some cases the result of the dehydration of acids, and in all cases representing in their composition the acid minus water
    • ***


Chambers's Twentieth Century Dictionary
Gr. a, an, neg., hydōr, water.


In literature:

This refrigerator is like those which we employ in our sulphurous anhydride frigorific apparatus.
"Scientific American Supplement No. 299" by Various
Byasson states that petroleum is formed by the action of water, carbonic anhydride, and sulphureted hydrogen upon incandescent iron.
"Scientific American Supplement, No. 443, June 28, 1884" by Various
Concentrated sulphuric acid with the aid of heat attacks the metal very slightly, evolving sulphurous anhydride.
"Scientific American Supplement, No. 365, December 30, 1882" by Various
Like most of the oxides of the non-metallic elements, carbon dioxide is an acid anhydride.
"An Elementary Study of Chemistry" by William McPherson
In a complete analysis, the figure for fatty acids should be converted into terms of fatty anhydrides by multiplying by the factor 0.9875.
"The Handbook of Soap Manufacture" by W. H. Simmons
As a matter of fact, reaction takes place at the boiling temperature of the anhydride.
"Researches on Cellulose" by C. F. Cross
Sulphurous anhydrid may be procured by burning sulphur.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
The constituents of rosin are chiefly (80-90%) abietic acid or its anhydride together with pinic and sylvic acids.
"Soap-Making Manual" by E. G. Thomssen
The unsaturated acids, also received much attention, and he discovered the internal anhydrides of oxyacids, termed lactones.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4" by Various
C., decomposing into water and maleic anhydride.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3" by Various

In news:

Get the most comprehensive and accurate maleic -anhydride price assessments.
Get the most comprehensive and accurate phthalic -anhydride price assessments.
Get the most comprehensive and accurate phthalic-anhydride price assessments.
D3644-06(2012): Standard Test Method for Acid Number of Styrene-Maleic Anhydride Resins.

In science:

Keefe and Miller suggest however that the prebiotic synthesis of polyphosphates is implausible. Except for the high energy phosphate anhydride bond in ATP, there is little similarity to today's biological energy conversion; (3) The mineral-based sorption heat engine proposed in this study.
Sorption heat engines: simple inanimate negative entropy generators